Locking device for clip-files.



H. vK. HOBE.

LOCKING DEVICE FOR CLIP FILES.

APPLICATION FILED MAY 13, 1910.

Patented Dec; 19, 1911.

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HARRY K. HOBE, OF SAN FRANCISCO, CALIFORNIA.

LOCKING DEVICE FOR CLIP-FILES.

Specification of Letters Patent.

Application filed May 13, 1910. Serial No. 561,203.

T 0 all whom it may concern:

Be it known that I, HARRY K. HOBE, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented certain new and useful Improvements in Locking Devices for Clip-Files, of which the following is a specification.

My invention relates to filing devices and has particular reference to locking mechanism therefor.

The chief objects of the improvements which constitute the subject matter of this application for patent are :to provide a simple and effective locking device for that type of filing clip in which a pivoted hook cooperates with a hollow spindle, thus preventing the abstraction or insertion of papers in the clip while in the locked position.

I accomplish the desired results by means of the device illustrated in the accompanying drawing, which forms a part of this application, the details of construction being disclosed in the following views.

Figure 1 is a vertical longitudinal section through a filing clip equipped with my improved device, showing the cooperating hook and spindle in locked relation; Fig. 2 is a similar view showing the parts in unlocked position, and Fig. 3 is a view of a modified form of hook.

Referring to the details of the drawing the numeral 5 indicates a hollow base of any desirable outline, having a removable bottom plate 6, attached by rivets or screws 7 Projecting vertically from the base is a steel rod 8 bent in a semicircle to form a suitable hook 9. The free end of the hook is straight for a short distance beyond the curved portion, as indicated at 10, for a purpose that will appear, and the extremity is furnished with a point 11 as usual. The shaft or shank 8 passes through a boss 12 projecting from the base, and its lower end is pivoted in a bearing plate 13, secured within the cavity of said base. Extending vertically from the opposite end of the base is a hollow spindle 14:, having its upper end beveled, as at 15, to form a point adapted to pierce the sheets of paper which are to be filed thereon, such spindles being in common use in devlces of this type. The spindle is so arranged that the beveled end will lie in the path of the hook point 11 when the said hook is swung upon its pivot and when in contact wlth the spindle end the said point 11 w1ll coincide with the axis of the said spindle. The bore of the spindle is somewhat larger than the diameter of the rod forming the hook, and within this bore is slidably fitted an elongated locking sleeve or tube 16. Then in its highest, or extended position, the upper end of said sleeve engages the lower end of the hook, surrounding and concealing the point 11, and when in this position as shown in Fig. 1, it will be readily seen that the hook is effectually locked against any pivotal movement.

The sleeve 16 is reciprocated by means of a bell crank lever 17, pivoted at 18 in a slotted lug 19 cast on the base. The long arm of said lever 17 projects through a longitudinal slot 20 in the end of the sleeve and is pivoted to the said sleeve by a pin 21, the lever having a slot 22 to permit a free movement. The bell crank lever 17 is operated by means of a lock 23, concealed within the cavity of the base. The tongue or bolt 24 of the lock is provided with a longitudinal slot 25 to admit the short arm of the lever 17, and the latter is pivotally secured therein by a pin 26. It will be evident that when the bolt 24 is moved in the usual manner by means of a key 27, the sleeve 16 will have a corresponding movement in its sheath or spindle 14. Thus when the said bolt is projected from the lock the sleeve 16 will be extended to its highest position where it will cover the end of the hook 9 and prevent its being swung open as aforesaid, and when the bolt is withdrawn by the use of the key, the sleeve will be retracted to the position shown in Fig. 2, permitting the hook to be swung on its pivot.

In Fig. 3 is shown a modification in the shape of the hook point. The end of the hook is reduced for a suitable distance from the point, as indicated at 28, and this reduction permits the said sleeve 16 shown in dotted outlines to be the same diameter as the rod composing the hook, and as the outer surfaces of these two members are flush when in engagement no obstruction will be oifered to the sliding of the sheets from the hook back upon the spindle, since the abrupt shoulder formed by the end of the sleeve when the latter is adapted to slip over the unreduced end, as indicated at 29 in Fig. 1, will be eliminated.

Having thus described my invention, what I claim as new, is:

In a clip file, the combination with a hol- Patented Dec. 19, 1911.

low base, a hollow pointed spindle mounted whereby the latter may be moved vertically 10 on said base, and a hook pivoted in said and locked in projected position.

base and adapted to enter the pointed portion In testimony whereof I afiix my signature of said spindle, ot a hollow member vertiin the presence of two Witnesses. cally slidable 1n sald splndle and adapted to HARRY K HOB-E.

receive the point of said hook and hold it against pivotal movement, a lock arranged WVitnesses:

in said base, and a bell-crank connection be- M. G. MOKIBBIN, tween the lock and said slidable member D. MGKIBBIN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of PFUfi'IllS Washington, D. G. 

